Overview
The OPA2227PAG4, produced by Burr Brown (now part of Texas Instruments), is a high-precision, low-noise operational amplifier. This dual-channel op-amp is part of the OPAx227 series, known for its excellent performance in various applications requiring high precision and low noise. The OPA2227PAG4 is available in a DIP-8 package and operates over a wide temperature range from –40°C to +85°C.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | TA = +25°C | ±5 | ±75 | ±10 | µV |
| Input Bias Current (IB) | TA = –40°C to +85°C | ±2.5 | ±10 | nA | |
| Common-Mode Rejection Ratio (CMRR) | TA = +25°C | 138 | dB | ||
| Open-Loop Gain (AOL) | TA = +25°C | 132 | 160 | dB | |
| Bandwidth | TA = +25°C | 8 | MHz | ||
| Slew Rate | TA = +25°C | 2.3 | V/µs | ||
| Supply Voltage Range | ±2.5 | ±18 | V | ||
| Operating Temperature Range | –40 | +85 | °C |
Key Features
- Low Noise: 3 nV/√Hz, making it suitable for high-precision applications.
- Wide Bandwidth: 8 MHz with a slew rate of 2.3 V/μs.
- High Precision: Low input offset voltage (±75 µV max) and low input bias current (±10 nA max).
- High Common-Mode Rejection Ratio (CMRR): 138 dB, ensuring minimal interference from common-mode signals.
- High Open-Loop Gain: 160 dB, providing high gain accuracy.
- Wide Supply Range: Operates from ±2.5V to ±18V, offering flexibility in power supply design.
- Fast Settling Time: 5 μs, which is a significant improvement over earlier models like the OP-27.
Applications
- Data Acquisition (DAQ): Ideal for precision data acquisition systems.
- Professional Audio Equipment: Suitable for rack-mounted audio equipment due to its low noise and high precision.
- Telecom Equipment: Used in telecommunications for signal processing and amplification.
- Geophysical Analysis: Employed in geophysical analysis for precise signal measurement.
- Vibration Analysis: Used in vibration analysis due to its high precision and low noise characteristics.
- Spectral Analysis: Suitable for spectral analysis applications requiring high precision and low noise.
- Active Filters: Used in active filter designs to ensure high precision and stability.
- Power Supply Control: Can be used in power supply control circuits for precise regulation.
Q & A
- What is the input offset voltage of the OPA2227PAG4?
The input offset voltage (VOS) of the OPA2227PAG4 is ±75 µV maximum at TA = +25°C.
- What is the bandwidth of the OPA2227PAG4?
The bandwidth of the OPA2227PAG4 is 8 MHz.
- What is the slew rate of the OPA2227PAG4?
The slew rate of the OPA2227PAG4 is 2.3 V/μs.
- What is the common-mode rejection ratio (CMRR) of the OPA2227PAG4?
The CMRR of the OPA2227PAG4 is 138 dB.
- What is the operating temperature range of the OPA2227PAG4?
The operating temperature range of the OPA2227PAG4 is from –40°C to +85°C.
- What is the supply voltage range for the OPA2227PAG4?
The supply voltage range for the OPA2227PAG4 is ±2.5V to ±18V.
- What are some common applications of the OPA2227PAG4?
The OPA2227PAG4 is commonly used in data acquisition, professional audio equipment, telecom equipment, geophysical analysis, vibration analysis, spectral analysis, active filters, and power supply control.
- What package types are available for the OPA2227PAG4?
The OPA2227PAG4 is available in DIP-8 and SO-8 packages.
- What is the input bias current of the OPA2227PAG4?
The input bias current (IB) of the OPA2227PAG4 is ±10 nA maximum at TA = –40°C to +85°C.
- How fast does the OPA2227PAG4 settle?
The settling time of the OPA2227PAG4 is 5 μs.
